White Space
TV White Space regulation has been established in countries around the world including the US, UK, Canada, and Singapore.
Authorized spectrum databases are used to ensure interference-free operation in the TV band.
For more information on spectrum databases in your country and to find how many channels are available
in a given area, the following spectrum database resources can be used. For complete list of spectrum
database providers in your country, please check with your regulator.
FCC NPRM
FCC NPRM
FCC issued first Notice of Proposed Rule Making (NPRM) to allow Unlicensed Operation in TV Broadcast Bands.
Adaptrum Launched
Adaptrum Launched
Adaptrum founded to develop cognitive radio systems that can unlock valuable unused spectrum for unlicensed broadband access.
FCC Testing
FCC Testing
FCC conducted public testing of TVWS prototype devices, including the device submitted by Adaptrum, the only startup participating.
TVWS rules approved
TVWS rules approved
November 2008: FCC unanimously approved unlicensed use of television white spaces and adopted the first revision of TVWS rules.
TVWS rules improved
TVWS rules improved
FCC adopted second revision of the TVWS rules, which greatly facilitated the unlicensed use of the spectrum.
UK launches TVWS trials
UK launches TVWS trials
UK’s OfCom launches Cambridge TV Whitespace Trial to test TV White Space technology and demonstrate uses and applications
First spectrum database certified
First spectrum database certified
FCC certified the first TVWS database provided by Spectrum Bridge
Adaptrum introduces ACRS1.0
Adaptrum introduces ACRS1.0
Adaptrum introduced its first generation product, ACRS1.0, the first high performance and fully FCC compliant TVWS broadband system
First TVWS demonstration in Asia
First TVWS demonstration in Asia
Adaptrum and Microsoft demonstrate TV White Space in Manilla, Philippines, during the annual meeting of the Asian Development Bank
Google spectrum database certified
Google spectrum database certified
November 2013: FCC certified the Google TVWS database together with Adaptrum’s ACRS1.0 system
Adaptrum ships ACRS2.0
Adaptrum ships ACRS2.0
April 2014: Adaptrum launches ACRS2.0 as the first commercial TVWS broadband system for volume production, and received FCC certification shortly after
TVWS goes global
TVWS goes global
Following success of TVWS in the US, UK, Singapore and Canada passed TVWS rules for commercial applications
ETSI compliance certification
ETSI compliance certification
Adaptrum received first certification for ETSi compliance for UK market and iDA approval in Singapore. ACRS 2.0 becomes the first commercial TVWS device to be certified for compliance in all regions world wide